I guess so I hope the movie explains it which I think it will. HOLD UP LOOK READ THIS: I found this on Wikipedia:

Henry (portrayed by Brenton Thwaites) is a young man who tries to reconnect with his father. He struggles to break a curse that is preventing him from doing so(You can't tell me this is Will and Elizabeth's son)

ALSO THIS IS VERY INTERESTING:

The filmmakers cited the first installment, The Curse of the Black Pearl, as inspiration for the script and tone of the film.[5][6] Pre-production for the film started shortly before On Stranger Tides was released in early 2011, with Terry Rossio writing a script for the film. In early 2013, Jeff Nathanson was hired to write a new script, with Depp being involved in Nathanson's writing process

Ohohoooo! That's quite the detail right there. Very interesting.......

And gosh, I can't believe they're returning to Black Pearl's tone after all this time. Not that that's a bad thing at all, but it's sure going to lead to some mood whiplash. Still, I'm sure a lot of people are going to be very happy about it!